Evidence for an intrinsic linear term in the T-dependence of the thermal 
conductivity of superconducting YBa2Cu3O7 and Bi2Sr2CaCu2O8 single crystals

Sparn, G.; Baenitz, M.; Horn, S.; Steglich, F.; Assmus, W.; Wolf, T.; Kapitulnik, A.; Zhao, Z. X.

doi:10.1016/0921-4534(89)91129-5

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Evidence for an intrinsic linear term in the T-dependence of the thermal conductivity of superconducting YBa₂Cu₃O₇ and Bi₂Sr₂CaCu₂O₈ single crystals

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Citation

Sparn, G., Baenitz, M., Horn, S., Steglich, F., Assmus, W., Wolf, T., et al. (1989). Evidence for an intrinsic linear term in the T-dependence of the thermal conductivity of superconducting YBa₂Cu₃O₇ and Bi₂Sr₂CaCu₂O₈ single crystals. Physica C, 162, 508-509. doi:10.1016/0921-4534(89)91129-5.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-D519-7

Abstract

The thermal conductivity (T) of superconducting YBa2Cu3O7 and Bi2Sr2CaCu2O8 single crystals contains an intrinsic non-phononic contribution for T<0.5K which varies linear in temperature and very likely reflects the presence of light normal carriers far below Tc.